JPS6217282B2 - - Google Patents
Info
- Publication number
- JPS6217282B2 JPS6217282B2 JP54030298A JP3029879A JPS6217282B2 JP S6217282 B2 JPS6217282 B2 JP S6217282B2 JP 54030298 A JP54030298 A JP 54030298A JP 3029879 A JP3029879 A JP 3029879A JP S6217282 B2 JPS6217282 B2 JP S6217282B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- recording
- magnetic
- recording medium
- medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000005291 magnetic effect Effects 0.000 claims description 70
- 239000010409 thin film Substances 0.000 claims description 20
- 230000004907 flux Effects 0.000 claims description 14
- KYAZRUPZRJALEP-UHFFFAOYSA-N bismuth manganese Chemical compound [Mn].[Bi] KYAZRUPZRJALEP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000005415 magnetization Effects 0.000 description 9
- 239000003302 ferromagnetic material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 230000005374 Kerr effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
- G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10552—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3029879A JPS55129908A (en) | 1979-03-15 | 1979-03-15 | Thermomagnetic recording and reproducing device |
| DE19803009978 DE3009978C2 (de) | 1979-03-15 | 1980-03-14 | Vorrichtung zur magneto-optischen Aufzeichnung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3029879A JPS55129908A (en) | 1979-03-15 | 1979-03-15 | Thermomagnetic recording and reproducing device |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18710485A Division JPS61105746A (ja) | 1985-08-26 | 1985-08-26 | 熱磁気記録再生装置 |
| JP18710685A Division JPS61105748A (ja) | 1985-08-26 | 1985-08-26 | 熱磁気記録再生装置 |
| JP18710585A Division JPS61105747A (ja) | 1985-08-26 | 1985-08-26 | 熱磁気記録再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55129908A JPS55129908A (en) | 1980-10-08 |
| JPS6217282B2 true JPS6217282B2 (fr) | 1987-04-16 |
Family
ID=12299824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3029879A Granted JPS55129908A (en) | 1979-03-15 | 1979-03-15 | Thermomagnetic recording and reproducing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS55129908A (fr) |
| DE (1) | DE3009978C2 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3278703D1 (en) * | 1981-03-26 | 1988-07-28 | Sony Corp | Thermomagnetic recording methods |
| JPS58200407A (ja) * | 1982-05-18 | 1983-11-22 | Olympus Optical Co Ltd | 磁気光学記録再生装置 |
| US4610009A (en) * | 1983-05-23 | 1986-09-02 | Xerox Corporation | Writing, erasing and readout system for a magneto-optic recording medium |
| JPH065585B2 (ja) * | 1984-02-15 | 1994-01-19 | 株式会社日立製作所 | 光磁気記憶装置 |
| JPH06105507B2 (ja) * | 1984-10-26 | 1994-12-21 | 日本電気株式会社 | 光磁気記録再生消去装置 |
| JPH0673197B2 (ja) * | 1985-02-25 | 1994-09-14 | 株式会社東芝 | 光磁気記録媒体とその製造方法 |
| JP2533847B2 (ja) * | 1985-10-17 | 1996-09-11 | オリンパス光学工業株式会社 | 光磁気記録再生装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51107121A (ja) * | 1975-03-17 | 1976-09-22 | Yoshifumi Sakurai | Hikarijikikirokuhoshiki |
| JPS5332009A (en) * | 1976-09-06 | 1978-03-25 | Univ Tohoku | Vertical magnetic recording reproducing magnetic head |
| JPS5421709A (en) * | 1977-07-19 | 1979-02-19 | Fuji Photo Film Co Ltd | Thermomagnetic recording system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3171754A (en) * | 1961-01-30 | 1965-03-02 | Ampex | Magnetic storage medium for magneto-optical readout |
| GB1377447A (en) * | 1971-03-02 | 1974-12-18 | Rca Corp | Apparatus for replicating magnetic recordings |
-
1979
- 1979-03-15 JP JP3029879A patent/JPS55129908A/ja active Granted
-
1980
- 1980-03-14 DE DE19803009978 patent/DE3009978C2/de not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51107121A (ja) * | 1975-03-17 | 1976-09-22 | Yoshifumi Sakurai | Hikarijikikirokuhoshiki |
| JPS5332009A (en) * | 1976-09-06 | 1978-03-25 | Univ Tohoku | Vertical magnetic recording reproducing magnetic head |
| JPS5421709A (en) * | 1977-07-19 | 1979-02-19 | Fuji Photo Film Co Ltd | Thermomagnetic recording system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3009978A1 (de) | 1980-09-18 |
| JPS55129908A (en) | 1980-10-08 |
| DE3009978C2 (de) | 1985-06-20 |
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